<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Config
 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: Writer.php 23953 2011-05-03 05:47:39Z ralph $
 */

/**
 * @category   Zend
 * @package    Zend_Config
 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
abstract class Zend_Config_Writer {
	/**
	 * Option keys to skip when calling setOptions()
	 *
	 * @var array
	 */
	protected $_skipOptions = array ('options' );
	
	/**
	 * Config object to write
	 *
	 * @var Zend_Config
	 */
	protected $_config = null;
	
	/**
	 * Create a new adapter
	 *
	 * $options can only be passed as array or be omitted
	 *
	 * @param null|array $options
	 */
	public function __construct(array $options = null) {
		if (is_array ( $options )) {
			$this->setOptions ( $options );
		}
	}
	
	/**
	 * Set options via a Zend_Config instance
	 *
	 * @param  Zend_Config $config
	 * @return Zend_Config_Writer
	 */
	public function setConfig(Zend_Config $config) {
		$this->_config = $config;
		
		return $this;
	}
	
	/**
	 * Set options via an array
	 *
	 * @param  array $options
	 * @return Zend_Config_Writer
	 */
	public function setOptions(array $options) {
		foreach ( $options as $key => $value ) {
			if (in_array ( strtolower ( $key ), $this->_skipOptions )) {
				continue;
			}
			
			$method = 'set' . ucfirst ( $key );
			if (method_exists ( $this, $method )) {
				$this->$method ( $value );
			}
		}
		
		return $this;
	}
	
	/**
	 * Write a Zend_Config object to it's target
	 *
	 * @return void
	 */
	abstract public function write();
}
